New Publication: Experimental Investigation of Converged Metro-Access Architectures

We are pleased to present our new article:
Giuseppe Rizzelli, Mariacristina Casasco, Emilio Riccardi, Annachiara Pagano, Valter Ferrero & Roberto Gaudino
“Experimental Investigation on the Fundamental Physical-Layer Capabilities for Converged Metro-Access Architectures Using Coherent Transceivers,”
J. Opt. Commun. Netw., Vol. 17, Issue 7, pp. 648-658 (2025).
🔗 Access the paper: https://doi.org/10.1364/JOCN.17.7.648
Highlights:

• Provides the first comprehensive experimental characterisation of converged metro + access network segments using coherent transceivers and ROADMs at the metro/access interface.
• Demonstrates net data rates of 200 G and 400 G per wavelength through scenarios involving high distribution network loss and multiple ROADMs in the access segment.
• Analyses key physical-layer constraints such as optical distribution network (ODN) loss, ROADM insertion loss, tight optical filtering and available OSNR, identifying the boundaries for deployment in PON-level splits.